Recovery of alumina trihydrate in the Bayer process

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Aug 20, 1991
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Apr 10, 1990
filing date
Apr 10, 1989

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Expired

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Abstract

In a Bayer process for production of aluminum, alumina trihydrate crystals are formed in the pregnant liquor and are flocculated using a combination of dextran and synthetic polymer, usually a homo- or copolymer of acrylic acid. The process is particularly advantageous where the liquor contains organic components such as humate and/or oxalate.

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Patent Owner	Address
ALLIED COLLOIDS LIMITED A BRITISH COMPANY	P O BOX 38 LOW MOOR BRADFORD WEST YORKSHIRE BD12 OJZ

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C01F:COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUM....

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Inventor Name	Address	# of filed Patents	Total Citations
Moody, Gillian M	West Yorkshire, GB2	6	98
Rushforth, Christine A	West Yorkshire, GB2	3	77

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Recovery of alumina trihydrate in the Bayer process

Number of patents in Portfolio can not be more than 2000

United States of America Patent

07506860

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PATENT NO	5041269
SERIAL NO	07506860
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07506860

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